cwharpe

About

Username
cwharpe
Joined
Visits
974
Last Active
Roles
Member

Comments

  • Ok, I'll give it a try... 1. Model Setup: * Constraints are correct. Since these are pinned supports, I don't think truss option is necessary. * There are nodes floating not attached to elements. "Delete Unused Nodes". Try the Refine…
  • Tested a model similar to the one you show. Different formats attempted: * Dxf: No good. Automesh 2D just blanket fills everything within the outer perimeter. * STL: Success. All regions meshed. * STEP: Success. All regions meshed. …
  • For Move/Copy: Is it possible to include two Mouse Pick buttons, similar to the other copy functions, so that nodes/elements can more easily be moved/copied from one point to another?
  • Try Solution / New stress and strain / Stress in element coordinates. Previous versions listed this with (beams, shells) after the description. Similarly, look under / New force and moment to activate your bending moment, shear, and axial force o…
  • Yep. That'll work.
  • @LHartley, There's nothing like a good project to accelerate the learning curve. Apologies if the following post restates what you already know, but others learning the system may find it useful. I noticed in the reactions.png file you posted…
  • @LHartley, Helps to note Node Order in which elements are first created (eg: to make a mitered picture frame of angles from 4-pts. in a plane, pick nodes (a to b) for each element, say, counterclockwise). "Invert" element and "Hide All but this" (…
  • If you have trouble getting going, here is that file in dxf format. I opened the download-stp file in FreeCAD, highlighted parts, then exported as dxf. In & out, without getting my feet wet. Verify the scale of the tower. I didn't see anythi…
  • DesignSpark install note: had difficulty registering for required (free) account at end of install (~2 Gb). Had to go through website to register, then software let me in. For those familiar with Sketchup, it has a similar feel at the outset.
  • OK. Yes, I was wondering why I thought it worked the first time (only). Also, is it possible to make ALL the selected Sources translate perpendicular to the Target? As it stands, like a fly swatter, unless the Target (swatter) is larger than the S…
  • @Victor: Thanks for the Node coordinates tip. Question about Project to Surface in new thread this date.
  • @Sergio: Ha! I was thinking "script suggestions" for better coding technique. I can see how it might sound I was offering to write more code. Off the cuff, for wish 1) & 2) I'd say the cleanest file read would be from the Mecway generate…
  • Inspired by others to work on scripting skills. Made a couple modifications on (two) clever scripts previously posted by others above: 1) AnchorSkew (Thanks @Victor --Skew tool). Noticed the skewed mesh would wind up scaled off the display the fu…
  • @Victor: Yes, that can work. Creates possibilities for some other scripts in mind. Thanks. # Cloud of nodes stored previously in Named Range # Hub is only active node in screen selection set. Might be part of Cloud. # Re-assign selectio…
  • Playing with scripting lately. Is there a way to suspend the execution of a Mecway script mid-way, so that user can mouse-select nodes/faces/elements when prompted?
  • Spider Beams tool. Draws Line2 elements from a center Hub (origin) to a selected cloud of nodes. Transition easily from line elements to shells. Save your node budget for areas of interest. Hyper-stiff Spider Beams can approximate behavior of a…
  • It just hit me.
  • That's a nice bit of analysis, disla. Could you shoot me a copy of your file? Did you say you used the RIGID card? Well, I wanted to see what shapes other software would produce using RBE2 & RBE3 elements. Drug out the old Nastran stuff. Fel…
  • Thanks for the feedback. To begin, employing an array of hyper-stiff beam elements, what I've called Spider Beams, is NOT the same as RBE2/RBE3 elements. Those elements use displacement constraint functions in ways I don't fully understand, and …
  • Well, the loop part was easy. No limit on nodes.
  • @Sergio: Got any programming loops that will draw a line then repeat for, what, the length of the selection set minus one?
  • Thanks, Sergio. I need to study your script a bit, but it showed me what I did wrong the first go around. I was extracting the coordinates, but all I needed was the node_id. Plus the syntax on writing the list. Here's version 2. Not robust enou…
  • Say, that's a clever trick @disla! Collapsing a shell's edge into it's opposite side -- I've missed that one along the way. Emphasis for the "Create New Component" step in the process that makes the new Line elements around top perimeter (nice set…
  • I mean when I'm Copying/Moving parts while building an assembly. Ex.: Laying out a steel staircase, on slope, with shells. Main Stringer meshed with Mecway Auto2D. Multiple step support angles, crossmembers, guardposts, etc., along its slope. Co…
  • I'm often wishing the Move/Copy dialog box had the section FROM (node) ==> TO (node). Would save me a lot of cut&paste from the distance dialog box. Added bonus if it were GUI pickable. That said, I am otherwise rather enjoying version 15.
  • Hmmmm. Aspect ratio of triangles look a little sharp, but results were comparable to a full quadrilateral model. When modeling shells, I try and use the largest element size possible, then refine from there.
  • Only know of creating a Named Selection for the first windowed group, then adding nodes (faces, elements) for the subsequent groups. I often have several Named Selections running to perform Adds or Subtracts and arrive at what I want.
Avatar

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!